0.62-0.32=
 
 		 9.8×0.5×2=
 
 0.25×4=
 
9.46×10=
 
 12÷0.6=
 
1
3
-
1
10
=
 
2.4-0.6=
 
 0.4×0.5=
 
 1÷0.25=
 
1
7
+
6
7
-
5
8
=
 
 9.6÷0.2=
 
 0.56÷0.8=
 
9.13×0=
 
 53.4÷10=
 
 8.5+1.8=
 
0.36÷0.4=
 
 60×0.8=
 
 1÷0.25=
 
．
分析：根據(jù)小數(shù)、分數(shù)加、減、乘、除法的計算法則，直接進行口算即可．
解答：解：
0.62-0.32=0.3；  9.8×0.5×2=9.8； 0.25×4=1；
9.46×10=94.6； 12÷0.6=20；
1
3
-
1
10
=
7
30
；
2.4-0.6=1.8； 0.4×0.5=0.2； 1÷0.25=4；
1
7
+
6
7
-
5
8
=
3
8
；		 9.6÷0.2=48； 0.56÷0.8=0.7；
9.13×0=0； 53.4÷10=5.34； 8.5+1.8=10.3；
0.36÷0.4=0.9； 60×0.8=48； 1÷0.25=4．
故答案為：0.3； 9.8； 1； 94.6； 20；
7
30
；1.8； 0.2；  4；
3
8
 48； 0.7； 0； 5.34；10.3；0.9； 48； 4．
點評：此題考查的目的是理解掌握小數(shù)、分數(shù)四則運算的計算法則，并且能夠正確熟練地進行口算，提高口算能力．
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